System and method for providing color light sources in proximity to predetermined wavelength conversion structures
US-10147850-B1 · Dec 4, 2018 · US
Bacterial light source with high quality of light
US11717581B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11717581-B2 |
| Application number | US-202217589086-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2022 |
| Priority date | Jun 24, 2016 |
| Publication date | Aug 8, 2023 |
| Grant date | Aug 8, 2023 |
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Abstract
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A light source for emitting emitted light having an SPD comprising: (a) a plurality of light emitters including at least one violet solid-state emitter; (b) at least one phosphor; wherein said light emitters and said at least one phosphor being configured such that: at least 25% of the power within the SPD is in the range 390-420 nm, and the emitted light has a chromaticity which is within a Duv distance of less than 5 points from the Planckian locus.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of reducing bactericidal counts, the method comprising: powering a light source to emit emitted light having a chromaticity, said light source comprising a plurality of light emitters including at least one violet solid-state emitter and at least one phosphor, wherein said chromaticity is within a Duv distance of less than 5E-3 from the Planckian locus, wherein said chromaticity and said Duv are calculated using CIE 1964 10° CMFs; and configuring said light source to illuminate a surface with said emitted light to reduce a bacterial count by at least a factor of ten in twelve hours. 2. The method of claim 1 , wherein the light source is characterized by a second chromaticity and a second distance to the Planckian Duv2, calculated with the 1931 2° CMFs, and Duv2 is larger than 5E-3. 3. The method of claim 1 , wherein the surface receives a violet irradiance in the range 390-420 nm of at least 1 W/m2. 4. The method of claim 1 , wherein the source has a CRI Ra above 80. 5. The method of claim 1 , wherein the violet solid-state emitter has a peak in the wavelength range 400-410 nm.
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Visible light · CPC title
Package configurations · CPC title
Constructional details · CPC title
Wavelength conversion materials · CPC title
Living organisms or biological materials · CPC title
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- What does patent US11717581B2 cover?
- A light source for emitting emitted light having an SPD comprising: (a) a plurality of light emitters including at least one violet solid-state emitter; (b) at least one phosphor; wherein said light emitters and said at least one phosphor being configured such that: at least 25% of the power within the SPD is in the range 390-420 nm, and the emitted light has a chromaticity which is within a Du…
- Who is the assignee on this patent?
- Korrus Inc
- What technology area does this patent fall under?
- Primary CPC classification C09K11/57. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 08 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 11 related publications on this page (citations in our corpus or others sharing the same primary CPC).